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To order toll Free, Call 1 800 580 7160 or Local 416 783 4140 or via secure web server
2012 William Optics ZenithStar 70mm ED Doublet F/6 APO is a true multi-purpose tube assembly. Excellent mechanics, fit and finish, latest WO Rack & Pinion 2-speed fine focuser, aluminum knob protection cover and super-high transmission multi-coating. Perfect for use with your DSLR! The 10:1 focusser, tested by Khan Scopes has proven to be very smooth. And the focusser assembly rotates 360 degrees to boot! Vixen style mounting plate allows you to mount it on any photographic tripod as well. It'''s fast focal ratio makes it your ideal travelling set-up for astrophotography, piggybacking or as a spotting scope. Lens Design ED glass (Japanese imported Ohara glass) doublet air-spaced, in CNC machined ultra-high precision lens cell. Each lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces. Low C.A. Fully baffled to block all extraneous off-axis light rays and prevent glancing reflections, increasing overall contrast. 70 mm clear aperture and F/6 focal ratio. Nothing Left to Chance Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube Drawtube travel length 72 mm with graduated scale. Retractable dewshield, smallest size ever and enhanced portability! Super Portable Retractable dewshield, smallest size ever and enhanced portability! SCT thread adapter to 1.25'' eyepieces with anti-marring brass compression ring. Can mount a WO 2'' SCT star diagonal for 2'' accessorie usage. Astrophotography super-apo Fast focal ratio for bright, high-quality astro-imaging. Dedicated field reducer/flattener available which will provide flat field performance at F4.8. Perfect for piggybacking as a guide scope.! Wonderful WO Microfocuser William Optics new rotatable Rack & Pinion focuser, smooth and precise, ideal during astrophotography. Adjustable focuser tension. Super-smooth and reliable 1:10 micro focuser for fine focusing during imaging and visual observations alike. Aluminum fine knob protection cover is included. Aperture 70 mm Focal Ratio F/6 (F/4.8 with new FlatIII) Focal Length 420 mm Objective Type Doublet, Air Spaced, Fully Multi-Coated, SMC coating. Resolving Power 1.6" Limiting Magnitude 11 Lens Shade Retractable Focuser 1.25" new R&P Focuser with 1:10 Dual Speed microfocuser 72 mm Focuser Travel Length 360οΎ° Rotatable Design L-type Mount L Bracket Field Stops 2 Baffles Tube Diameter 76 mm (dewshield 96mm) Tube Length 330 mm Fully Retracted 400 mm Fully Extended Tube Weight 4.8 lbs. (2.2 kg) Field Flattener 0.6x also available for this Telescope, The New Williams Optics III Field Flattener: $199.
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